To calibrate aquarium pump please follow these steps:
Make sure the difference in height between kH Keeper and reagent container is not greater than 20 cm.
Put the reagent nozzle comming form the pump to measuring beaker
Fully fill the tubes using FILL THE CIRCUIT button
Please empty the measuring beaker if any liquid is present
Start the calibration process
When the pump stops please measure the amount that it is in the beaker and put the value in the box
Check if the pump is calibrated correctly.
To do this put the tube to the empty measuring cup and use TEST THE ACCURACY button. The difference should not be greater than 0,05 ml.